zipfile.java

这是Java思想的最高集萃

package chapter18;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class ZipFile{
	public static void main(String[] args){
		ArrayList fileNames = new ArrayList(); // 存放文件名,并非含有路径的名字
		ArrayList files = new ArrayList(); // 存放文件对象

		try{
			FileOutputStream fileOut = new FileOutputStream("D:/ZipOutOfPath.zip");
			ZipOutputStream outputStream = new ZipOutputStream(fileOut);

			File rootFile = new File("D:/temp");
			listFile(rootFile, fileNames, files);    
			
			for (int loop=0; loop<files.size(); loop++){
				/*
				 * files.size() 对象的长度不是用length()
				 */
				FileInputStream fileIn = new FileInputStream((File)files.get(loop));
				outputStream.putNextEntry(new ZipEntry((String)fileNames.get(loop)));
				byte[] buffer = new byte[1024];
				while (fileIn.read(buffer) != -1){
					outputStream.write(buffer);
				}

				outputStream.closeEntry();
				fileIn.close();
			}

			outputStream.close();
		}
		catch (IOException ioe)
		{
			ioe.printStackTrace();
		}
	}

	static void  listFile(File parentFile, List nameList, List fileList)
	{
		if (parentFile.isDirectory())
			/*
			 * 看是不是目录，条件是如果是目录
			 */
		{
			File[] files = parentFile.listFiles();
			/*
			 * files[]里边存的具体是”D:/temp“，当然是二级
			 */
			for (int loop=0; loop<files.length; loop++)
			{
				listFile(files[loop], nameList, fileList);
			}
		}
		else
			/*
			 * 如果不是目录
			 */
		{
			fileList.add(parentFile);
			/*
			 * 存放文件对象
			 */
			nameList.add(parentFile.getName());
			/*
			 * 存入文件名
			 */
		}
	}
}